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sneakthief

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Everything posted by sneakthief

  1. Aha! That's exactly what I needed. Thanks for those suggestions :)I'll try them out tomorrow.
  2. Yes, at the moment the Core8 is the only solution for the non-beta MIDIbox CV version: http://www.ucapps.de/midibox_cv.html
  3. I'm in the process of forking Audiocommander's fantastic AC Sensorizer project. I want to be able to trigger notes in order to play repeatable melodies. If I'm playing a chromatic scale, I can play 4 consecutive notes. If I change the spread with a quick flick of my wrist, those four notes could then become 3rds or 5ths. Or if I hold down a note while flicking my wrist in Z-axis, it would instead play a chord. All notes can be processed by the Sensorizer's scale quantizer, meaning that those notes could all be pentatonic, Indian Ragga, Balinese Gamelan, whatever. I have 143 different scales programmed so far. 1. Hardware: - PIC18F4620 - Spectra Symbol Flex Sensor - IDG500 + ADXL 335 "5 Degrees of Freedom" accelerometer and dual gyro (analog X,Y,Z,pitch,roll sensor) 2. First prototype using only the flex sensor: 3. Second prototype with SMD PIC core and proper, super-thin glove:
  4. What's the best routine to capture the peak value from an analog in pin? I'm working on a gesture-based instrument, in specific, a glove with a 3-axis accelerometer on it. It's obviously impossible to maintain some kind of constant acceleration with one's hand, so instead I want to choose a note based on how fast I move my hand along an axis. That means taking the maximum (or minimum) AIN-reading each time it passes a threshold, like some kind of track-and-hold. Here's my first prototype, with an accelerometer, flex sensor and finger contacts using conductive thread: This is just for testing, unlike my 2nd prototype below which has a proper glove, smaller case and TQFP (!) SMD PIC18F:
  5. Seems Arduino uses 490-500Hz for PWM: http://arduino.cc/en/Reference/analogWrite http://neuroelec.com/2011/03/high-pwm-frequency-for-led-good-or-bad/
  6. Does anyone have any old Core8's they have lying around that they don't need anymore? I want to build an AC Sensorizer!
  7. I have this same problem with my MB-808 in pattern mode (as slave). Should I start a new thread about it? To be specific, I'll send a pattern change command from my RS7000 via midi and the pattern on the 808 changes but the first beat is about 30-40ms too late.
  8. Why don't you try the idea suggested in that paragraph - stick a 1M linear pot instead of the 1M resistor and see if trying different resistances helps?
  9. All Mixed Feelings tracks now on Soundcloud: http://soundcloud.com/neuroplayer/sets/sneak-thief-mixed-feelings-lp/
  10. Thanks! There's no vinyl left from my previous releases over the last 12 years. There won't be any 12" pressed for this release, but later releases on my new label Neuroplayer will have vinyl :)
  11. This is my first full-length LP after releasing twenty 12" vinyl EP's: http://neuroplayer.com/store/sneak-thief-mixed-feelings-cd.html MEGAMIX album preview: Made mostly with my DIY-modular, MIDIbox CV & MB-808:
  12. You'll have to search for "new old stock" since ReAn knobs are no longer being manufactured.
  13. Looking for a couple of SSM2164 boards... anybody? Wilba, isn't it time you clear out your junk? hehe
  14. Wow, that would be amazing! Now imagine a control page that looked like this for your own custom quantizer scales:
  15. @TK - I would still love MIDIbox CV 2.0 to be able to quantize incoming CV signals using audiocommander's Harmonizer class. In order to take 8 external voltages into the core, you either need to use 1) 5v voltage limiting diodes, or 2) voltage dividers using two matched precision resistors (so you can accept up to 10v CV sources): signal in --- 2k resistor ---+--- 2k resistor --- ground | signal out I've mentioned this before: Unfortunately I never got very far with my earlier attempts :-/
  16. ucapps.de -> MIOS8 Download http://ucapps.de/mios_download.html ucapps.de -> MIOS32 Download http://ucapps.de/mios32_download.html
  17. Some interesting things to note: Eben Upton (the creator of Raspberry Pi) also works as a SoC ASIC architect for Broadcom. Here's the chip that powers the Pi: BCM2835 - http://www.broadcom.com/products/BCM2835 It's based on this: ARM1176 (700 MHz) - http://en.wikipedia.org/wiki/VideoCore - http://hardware.slashdot.org/comments.pl?cid=37338328&sid=2416924
  18. I just bought 5 faders from Mouser to repair a Pioneer DJM-500: http://www.mouser.com/ProductDetail/ALPS/RS451121400A/?qs=sGAEpiMZZMta4trl6r8pJ2TxuEmKWC%252bJcFggXwSIrf8%3D I'm not sure which other Pioneer mixers are compatible with this. Re. knobs - original replacements are a ripoff, so if you're not concerned with something that looks exactly the same but is passable with the rest, I suggest these: http://www.mouser.com/ProductDetail/Eagle-Plastic-Devices/450-4765/?qs=Xb8IjHhkxj42qFB9Jif9%252bA%3d%3d
  19. Same thing happens to me - I'll save a patch with the merger ON and the next time I turn on the MIDIbox CV, the menu says that the merger is on but it's not (unless you select merger OFF then select ON again)
  20. Let me suggest a perhaps difficult but incredibly useful feature: Imagine being able to instantly load and play stored sequences from the SD card (or maybe cached in memory) simply by sending a midi note. This would allow you to trigger various sequences on the fly using half of a midi keyboard. They could either latch, play once or play only for the duration that the note is held.
  21. The first thing to always try when a MIDIbox starts misbehaving is a beefier power supply going into the 5v regulator. Measuring the voltage after the regulator won't always give you the full story about deficiencies in the current being delivered.
  22. I tested the new firmware and it's great! The pattern switching works exactly as I'd hoped. Vielen Dank :)
  23. @bilderbuchi - yes! good idea, and cheap too :) I was looking for a little case that would be easy to modify for this oscilloscope: http://www.gabotronics.com/development-boards/xmega-xprotolab.htm
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